MPF0900AMBA2ES datasheet(78/205 Pages) NXP

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NXP Semiconductors

PF09

Nine-channel power management IC with advanced system safety monitoring

OTP_GPIO2_MODE[1:0]

GPIO2 mode

Open-drain output

Push-pull output

Reserved

LDO1EN input

Table 86. GPIO2 mode

The GPIO2_S flag is provided to read the real-time state of the GPIO2 pin.

GPIO2_S

GPIO2 State

Low

High

Table 87. GPIO2_S flag

12.8.10.1 GPO mode

When the GPIO2 is used as a general-purpose output (GPO mode), the pin will be asserted low during the OFF

states. iI can be set high by default during the Power-up sequence, or manually during the system-on states.

When the output is set as an open drain, the GPIO2 pin can be pulled up to any voltage lower than VIN with an

external resistor between 10 kΩ and 470 kΩ. System requirements must be taken into account when selecting

the pullup voltage and resistance. To prevent the output from being pulled high in the ULPOFF state, the

selection must ensure that the pullup voltage is not present during off condtions.

When the output is set as a push-pull driver, the PF09 will use the VIN internally to set the high state on the

GPIO2 pin.

The GPIO2 uses the OTP_SEQ_TBASE[1:0] and the OTP_GPO2_SEQ[7:0] bits to enable the GPO by default

at a specific time slot during the Power-up sequence. Refer to section 16.3.3 Regulator Power-up Sequence, for

a detailed description of the Power-up sequence.

The GPIO2 pin is designed to have independent control configuration during the RUN and the STANDBY states,

to allow full control of the GPIO2 when going in and out of the STANDBY state.

In the RUN state, the level of the GPIO2 pin can be controlled manually via the GPIO2_RUN bit.

GPIO2_RUN

GPIO2 state

Low

High

Table 88. GPIO2 state in RUN

In the STANDBY state, the level of the GPIO2 pin can be controlled manually via the GPIO2_STBY bit.

GPIO2_STBY

GPIO2 state

Low

High

Table 89. GPIO2 state in STANDBY

PF09

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 1.3 — 16 December 2025

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